Display device and electronic apparatus

ABSTRACT

A display device and an electronic apparatus using the display device include a display component configured to output initial light corresponding to a first image; and a light path converting component configured to receive the initial light corresponding to the first image from the display component, and perform light path conversion on the initial light corresponding to the first image to form a virtual image corresponding to the first image, wherein the virtual image corresponding to the first image is capable of being perceived at a particular position and a size of the virtual image perceived is greater than a display size of the display component.

This application claims priority to Chinese patent application No.201410125865.0 filed on Mar. 31, 2014, the entire contents of which areincorporated herein by reference.

The present application relates to the field of display device, and moreparticularly, to a display device and an electronic apparatus using thedisplay device.

BACKGROUND

At present, an electronic apparatus is often equipped with aconventional display, such as liquid crystal display (LCD), organicelectroluminescent display, organic light emitting diode (OLED) displayetc. When the size of the electronic apparatus itself is limited (e.g.,the electronic apparatus is a wearable electronic apparatus like a smartwatch, smart glasses or an HMD (head-mounted display) device, ifequipped with only a conventional display, usually its display area isquite small, only limited information is displayed.

It is therefore desirable to provide a display device that can provideimage or video display with larger size and higher resolution withoutbeing restricted by size of the wearable electronic apparatus itself,like a smart watch, thereby enhance associated user experience. Further,when the display device that provides image or video display with largersize and higher resolution is applied to a wearable electronicapparatus, it is desired to further reduce the size and weight of thedisplay device, so as to provide more comfortable wearing experience tothe user.

SUMMARY

According to an embodiment of the present application, there is provideda display device, comprising a display component configured to outputinitial light corresponding to a first image; and a light pathconverting component configured to receive the initial lightcorresponding to the first image from the display component, and performlight path conversion on the initial light corresponding to the firstimage to form a virtual image corresponding to the first image, whereinthe virtual image corresponding to the first image is capable of beingperceived at a particular position, and a size of the virtual imageperceived is greater than a display size of the display component.

According to another embodiment of the present application, there isprovided an electronic apparatus, comprising: a body device thatincludes a processing unit configured to generate a first image to bedisplayed and execute display control; a fixing device connected withthe body device and configured to fix a position relationship relativeto a user of the electronic apparatus; and a display device providedwithin the body device and/or the fixing device, wherein the displaydevice includes: a display component configured to output initial lightcorresponding to the first image; and a light path converting componentconfigured to receive the initial light corresponding to the first imagefrom the display component, and perform light path conversion on theinitial light corresponding to the first image to form a virtual imagecorresponding to the first image, wherein the virtual imagecorresponding to the first image is capable of being perceived at aparticular position, and a size of the virtual image perceived isgreater than a display size of the display component.

It is to be understood that both the foregoing general descriptions andthe following detailed descriptions are exemplary and intended toprovide further explanation of the claimed technique.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram briefly illustrating a display deviceaccording to an embodiment of the present application.

FIG. 2 is a structural block diagram illustrating a display deviceaccording to a first exemplary embodiment of the present application.

FIGS. 3A and 3B are structural block diagrams illustrating a displaydevice according to a second exemplary embodiment of the presentapplication.

FIG. 4 is a structural block diagram illustrating a light emitting unitin a display device according to a third exemplary embodiment of thepresent application.

FIG. 5 is a structural block diagram illustrating a display component ina display device according to a fourth exemplary embodiment of thepresent application.

FIG. 6 is a structural block diagram illustrating a display component ina display device according to a fifth exemplary embodiment of thepresent application.

FIG. 7 is a structural block diagram illustrating a display unit in adisplay device according to a sixth exemplary embodiment of the presentapplication.

FIGS. 8A and 8B are structural block diagrams illustrating a displaydevice according to a seventh exemplary embodiment of the presentapplication.

FIG. 9 is a schematic diagram illustrating a display device according toan embodiment of the present application is applied to an electronicapparatus.

FIGS. 10A to 10E are structural block diagrams illustrating anelectronic apparatus according to an embodiment of the presentapplication.

FIG. 11 is a schematic diagram illustrating an electronic apparatusaccording to an embodiment of the present application.

FIG. 12 is another structural block diagram illustrating an electronicapparatus according to an embodiment of the present application.

FIG. 13 is another structural block diagram illustrating an electronicapparatus according to an embodiment of the present application.

FIGS. 14A and 14B each are another structural block diagram illustratingan electronic apparatus according to an embodiment of the presentapplication.

FIG. 15 is another structural block diagram illustrating an electronicapparatus according to an embodiment of the present application.

FIG. 16 is another structural block diagram illustrating an electronicapparatus according to an embodiment of the present application.

FIGS. 17A and 17B respectively are a plan view and a side viewillustrating a first configuration example of a visible area of anelectronic apparatus according to an embodiment of the presentapplication.

FIGS. 18A and 18B respectively are a plan view and a side viewillustrating a second configuration example of a visible area of anelectronic apparatus according to an embodiment of the presentapplication;

FIGS. 19A and 19B respectively are a plan view and a side viewillustrating a third configuration example of a visible area of anelectronic apparatus according to an embodiment of the presentapplication.

FIGS. 20A to 20D respectively are a plan view and a side viewillustrating first to third examples of a mutual movement state of avisible area of an electronic apparatus according to an embodiment ofthe present application.

FIGS. 21A to 21D are schematic diagrams illustrating a first specificconfiguration of a fixing device of an electronic apparatus according toan embodiment of the present application.

FIGS. 22A and 22B are schematic diagrams illustrating a second specificconfiguration of a fixing device of an electronic apparatus according toan embodiment of the present application.

FIG. 23 is another schematic diagram illustrating an electronicapparatus according to an embodiment of the present application.

FIGS. 24A to 24C are schematic diagrams illustrating a display device inan electronic apparatus according to an embodiment of the presentapplication.

FIGS. 25A and 25B are schematic diagrams illustrating a using state ofan electronic apparatus according to an embodiment of the presentapplication.

DETAILED DESCRIPTION

Hereinafter, the embodiments of the present application will bedescribed in detail with reference to the accompanying drawings.

First, a display device according to an embodiment of the presentapplication will be described with reference to FIGS. 1 to 8B. Thedisplay device according to an embodiment of the present application maybe applied to any electronic apparatus that includes a display device,it may be a wearable electronic apparatus or any other type ofelectronic apparatus. Those skilled in the art will readily appreciatethat, in the case of applying the display device according to anembodiment of the present application to a wearable electronicapparatus, the wearable electronic apparatus may be, but not limited to,a headset or wrist-mounted electronic apparatus.

FIG. 1 is a schematic diagram briefly illustrating a display deviceaccording to an embodiment of present application. As shown in FIG. 1,the display device 1 according to an embodiment of the presentapplication includes a display component 10 and a light path convertingcomponent 20. The display component 10 is configured to output initiallight corresponding to a first image to be displayed by the displaydevice 1 (light indicated by the solid-line arrow shown in FIG. 1). Thelight path converting component 20 is configured to receive the initiallight corresponding to the first image from the display component 10,and perform light path conversion on the initial light corresponding tothe first image to form a virtual image corresponding to the firstimage, so that a viewer 30 at a particular position perceives thevirtual image corresponding to the first image, wherein a size of thevirtual image perceived is greater than a display size of the displaycomponent 10.

Specifically, in an embodiment of the present application, the displaycomponent 10 may be for example a self-luminous type display componentlike an organic light emitting diode (OLED) display, may also be abacklight type display component like a liquid crystal display. Thelight path converting component 20 may include lens group forcollimating and amplifying an image and a waveguide chip or a flexiblewaveguide for changing an exit direction of the image and so on.Further, the viewer 30 at a particular position can perceive a virtualimage corresponding to the first image. Specifically, image is formed ata particular position through the light path converting component 20 asneeded by design, for example, as shown in FIG. 1, the particularposition may be either side relative to the light path convertingcomponent 20.

Therefore, the display device 1 according to the embodiment of thepresent application as shown in FIG. 1 is not restricted by size of theelectronic apparatus equipped with the display device 1, it can provideimage or video display with larger size and higher resolution to theviewer at a particular position as needed by design. Specificconfigurations of the display device according to the first to seventhexemplary embodiments of the present application will be furtherdescribed below.

FIG. 2 is a structural block diagram illustrating a display deviceaccording to a first exemplary embodiment of the present application.For simplicity of the illustration, FIG. 2 illustrates merely thedisplay device 1 that includes a display component 10 and a light pathconverting component 20, internal configurations of the displaycomponent 10 and the light path converting component 20 as well as thelight path are not shown in FIG. 2.

As illustrated in FIG. 2, light that forms the first image in thedisplay component 10 is on a first plane 300, light that forms thevirtual image corresponding to the first image and exits from the lightpath converting component 20 is on a second plane 400, there is a firstangle between the first plane 300 and the second plane 400. In anembodiment of the present application, the first angle is 90 degrees. Inthis case, a first size La of the display component in a directionvertical to the first plane is made smaller than a second size Lb of thedisplay component in a direction parallel to the first plane. Thus, whenthe display device 1 is provided within a wearable electronic apparatus,for example, when the electronic apparatus is smart glasses, the displaycomponent 10 is provided within a frame at one side (i.e., glass leg) ofthe smart glasses, it is such configured so that thickness of the framewithin which the display component 10 is provided is thinner. Similarly,when the electronic apparatus is a smart watch, the display component 10is provided within a wrist strap at one side of the smart watch, and itis such configured so that thickness of the wrist strap within which thedisplay component 10 is provided is thinner. Accordingly, the displaycomponent 10 according to the first exemplary embodiment of the presentapplication achieves a thickness reduction in a specific direction, andthereby achieves a thickness reduction in a specific direction of thedisplay device 1.

FIGS. 3A and 3B are structural block diagrams illustrating a displaydevice according to a second exemplary embodiment of the presentapplication. Similar to the display device according to the firstexemplary embodiment of the present application as shown in FIG. 2, thedisplay device 1 according to the second exemplary embodiment of thepresent application also includes a display component 10 and a lightpath converting component 20. As shown in FIG. 3A, the display component10A specifically includes a light source subunit 111, a light uniformingsubunit 112, and a display unit 12, wherein the light uniforming subunit112 sets the light source subunit 111 overlapped in an emissiondirection of the initial light corresponding to the first image, anduniforms a point light source emitted by the light source subunit 111 asbacklight. Different than that, as shown in FIG. 3B, in the displaydevice 1, the display component 10B specifically includes a lightemitting unit 11 and a display unit 12. The light emitting unit 11 isconfigured to generate and emit plane backlight (light indicated by thedotted-line arrow shown in FIG. 3B), which is on the first plane asdescribed with reference to FIG. 2. The display unit 12 is providedwithin an irradiation area of the backlight, and configured to generatethe initial light corresponding to the first image based on the firstimage (e.g. light indicated by the solid-line arrow shown in FIG. 3B).

Therefore, in the display device according to the second exemplaryembodiment of the present application as shown in FIG. 3B, a combinationmanner of a single point light source and an optical light uniformingsystem as shown in FIG. 3A is replaced with a single light emitting unit11 that emits plane backlight, so that thickness of the displaycomponent 10 in the display device according to the second exemplaryembodiment of the present application is reduced in the emissiondirection of the initial light corresponding to the first image.

FIG. 4 is a structural block diagram illustrating a light emitting unitin a display device according to a third exemplary embodiment of thepresent application. The light emitting unit 11 as shown in FIG. 4 maybe an implementation of the light emitting unit that emits planebacklight in the display device according to the second exemplaryembodiment of the present application as shown in FIG. 3. The lightemitting unit 11 in the display device according to the third exemplaryembodiment of the present application includes a light source unit 1001and a light guide subunit 1002 in particular. Specifically, the lightsource subunit 101 is configured to emit light towards a seconddirection (light indicated by the dotted-line arrow shown in FIG. 4),the light guide subunit 1002 is provided within an irradiation area ofthe light, the light transmits through the light guide subunit 1002 toform the backlight (light indicated by the solid-line arrow shown inFIG. 4). That is, the light guide subunit 1002 converts light emitted bythe light source subunit 101 which serves as a single point light sourceinto plane backlight, which is located on the first plane describedabove with reference to FIG. 2. In an embodiment of the presentapplication, the light source subunit 101 may be an LED light source,and the light emitting unit 11 may further include an optical film.Thickness of the whole light emitting unit 11 is controlled for examplewithin 1.5 mm, and the emission angle of the plane backlight convertedby the light guide subunit 1002 is controlled within 14 degrees, thatis, an maximum angle between an exit direction of the backlight formedby the light guide subunit 1002 and the second direction is 7 degrees.Therefore, the exit direction of the plane backlight converted by thelight guide subunit 1002 approximately is considered as in the samedirection (i.e., the second direction), which avoids the generation ofstray light that exits towards a direction different than the seconddirection.

Therefore, in the light emitting unit 11 of the display device accordingto the third exemplary embodiment of the present application, the lightemission direction of the light source subunit 101 is different than thelight emission direction of the light converted by the light guidesubunit 1002 (i.e., in a direction vertical to the emission direction ofthe backlight, the light source subunit 101 is provided at a side of thelight guide subunit 1002), so that in comparison with the case ofproviding the light source subunit and the light guide subunitoverlapped in the emission direction of the backlight, thickness of thedisplay component 10 in the display device 3 according to the thirdexemplary embodiment of the present application is reduced in theemission direction of the initial light corresponding to the firstimage.

FIG. 5 is a structural block diagram illustrating a display component ina display device according to a fourth exemplary embodiment of thepresent application. As shown in FIG. 5, the display component 10 in thedisplay device according to the fourth exemplary embodiment of thepresent application includes a light emitting unit 51, a display unit52, and a beam splitting unit 53. Specifically, the light emitting unit51 is configured to emit backlight (light indicated by the dotted-linearrow shown in FIG. 5). As described above, the light emitting unit 51may be a light emitting unit that emits plane backlight as describedabove with reference to FIGS. 3 and 4. The backlight from the lightemitting unit 51 transmits through the beam splitting unit 53. In anembodiment of the present application, the beam splitting unit 53 is apolarization beam splitter (PBS). P-polarized backlight emitted by thelight emitting unit 51 transmits through the PSB that serves as the beamsplitting unit 53, so as to illuminate the display unit 52. The displayunit 52 is provided within an irradiation area of the backlight, andconfigured to generate the initial light corresponding to the firstimage based on the first image (light indicated by the solid-line arrowshown in FIG. 5). Further, the initial light corresponding to the firstimage from the display unit 52 (after being modulated as S-polarizedlight) is reflected at the PBS which serves as the beam splitting unit53, to be guided to the light path converting component via the beamsplitting unit 53.

FIG. 6 is a structural block diagram illustrating a display component ina display device according to a fifth exemplary embodiment of thepresent application. As shown in FIG. 6, the display component 10 in thedisplay device according to the fifth exemplary embodiment of thepresent application includes a light emitting unit 61, a display unit62, and a beam splitting unit 63. Specifically, the display unit 62 isconfigured to generate a display signal corresponding to the first imagebased on the first image. The light emitting unit 61 is configured togenerate the initial light corresponding to the first image based on thedisplay signal. That is, the light emitting unit 61 and the display unit62 in the display device according to the fifth exemplary embodiment ofthe present application may be implemented as a self-luminous type OLEDdisplay device, the display unit 62 is a control unit that generates adisplay drive signal based on the first image to be displayed, the lightemitting unit 61 is a self-luminous layer that executes emitting displaybased on the received display drive signal. Similar to the casedescribed with reference to FIG. 5, the beam splitting unit 63 isconfigured to guide the initial light corresponding to the first imagefrom the display unit to the light path converting component. In anembodiment of the present application, the beam splitting unit 63 is apolarization beam splitter (PBS).

Therefore, in the display component 10 of the display device accordingto the fifth exemplary embodiment of the present application, thedisplay unit and the light emitting unit are integrally provided on oneside of the beam splitting unit, so that a size of the display device inthe direction of generating the initial light is smaller than a size ofdisplay device in the direction of generating the initial light in thecase where the display unit and the light emitting unit are integrallyprovided on both sides of the beam splitting unit (the case shown withreference to FIG. 5).

FIG. 7 is a structural block diagram illustrating a display unit in adisplay device according to a sixth exemplary embodiment of the presentapplication. The display unit 12 shown in FIG. 7 may be applied to thedisplay component described with reference to FIGS. 3 to 5. As shown inFIG. 7, the display unit 12 includes a micro-display subunit 701, acircuit board subunit 702, and a substrate subunit 703. Specifically,the micro-display subunit 701 is configured with a plurality of arraysof pixel cells, each pixel cell being used for generating the initiallight corresponding to the first image. The circuit board subunit 702 isconfigured to provide a control signal based on the first image tocontrol the pixel cells in the micro-display subunit 701 to generate theinitial light corresponding to the first image. The substrate subunit703 is configured to arrange the micro-display subunit 701 and thecircuit board subunit 702 thereon. Flexural strength and fracturetoughness of the substrate subunit 703 may be denoted by the followingequations:

$\begin{matrix}{\sigma_{f} = \sqrt{\frac{2\; E\;\gamma_{f}}{C}}} & ( {{Equation}\mspace{14mu} 1} ) \\{K_{ZC} = \sqrt{2\; Z\;\gamma_{f}}} & ( {{Equation}\mspace{14mu} 2} )\end{matrix}$

where σ_(f) is flexural strength, K_(ZC) is fracture toughness, E iselastic modulus, γ_(f) is fracture energy, and C is crack size. As canbe seen from the above Equations 1 and 2, in order to improve strengthof the material, fracture energy and elastic modulus must be increased,to reduce fracture size. To achieve toughness of the material, fractureenergy and elastic modulus must be increased. It is known that thesubstrate subunit is typically made from metal material like aluminum,which always reaches a thickness of 1.6 mm. Elastic modulus of thenon-metallic material, like ceramic material, is much larger than thatof the metals, often higher by one to several times.

Thus, in the display unit of the display device according to the sixthexemplary embodiment of the present application, the substrate subunit703 is made from non-metallic material that satisfies a predeterminedintension, so that a thickness of the substrate subunit is lower thanthat of the substrate subunit 703 made from metallic material thatsatisfies a predetermined intension (e.g., as low as 0.25 mm).

FIGS. 8A and 8B are structural block diagrams illustrating a displaydevice according to a seventh exemplary embodiment of the presentapplication. Similar to the display device described with reference toFIG. 1, the display device 1 according to the seventh exemplaryembodiment of the present application as shown in FIGS. 8A and 8B alsoincludes a display component 10 and a light path converting component20.

Specifically, the display component 10 includes a display unit 12 and abeam splitting unit 13 (as shown in FIG. 8A), this type of displaycomponent has already been described above with reference to FIG. 6.Alternatively, the display component 10 includes a light emitting unit11, a display unit 12, and a beam splitting unit 13 (as shown in FIG.8B), this type of display component has already been described abovewith reference to FIG. 5. Here, repeated descriptions of the displaycomponent 10 and its light path will be omitted.

As shown in FIGS. 8A and 8B, the light path converting component unit 20further includes a collimating unit 21 and a waveguide unit 22, thecollimating unit 21 is configured to collimate the initial lightcorresponding to the first image from the display component 10 intocollimated light corresponding to the first image, and lead the sameinto the waveguide unit. Specifically, the collimating unit 21 includesa first collimating subunit 201 and a second collimating subunit 202provided opposite to each other, and a polarization beam splittingsubunit 203 provided between the first collimating subunit 201 and thesecond collimating subunit 202, the initial light corresponding to thefirst image from the display component 10 is reflected by thepolarization beam splitting subunit 203 to the first collimating subunit201, thereafter it is collimated by the first collimating subunit 201and the second collimating subunit 202, and exited by the polarizationbeam splitting unit 203 as the collimated light corresponding to thefirst image. The waveguide unit 22 guides the collimated light from thecollimating unit 21 to the particular position, wherein the collimatedlight corresponding to the first image is for forming the virtual imagecorresponding to the first image. In an embodiment of the presentapplication, the first collimating subunit 201 and the secondcollimating subunit 202 may be a single lens or a lens group as neededby design. It is possible to implement adjustment of a size of thevirtual image corresponding to the first image by adjusting the relativeposition of the lens or lens group by which the first collimatingsubunit 201 and the second collimating subunit 202 are configured.

In addition, as shown in FIGS. 8A and 8B, the waveguide unit 22 furtherincludes a first reflection subunit 204 and/or a second reflectionsubunit 205, it is possible to control to guide the collimated lightfrom the collimating unit 21 and corresponding to the first image to theparticular position to exit, by setting the position and angle of thefirst reflection subunit 204 and/or the second reflection subunit 205.In a first case, the collimating unit 21 and the display component 10are located at a first side relative to the plane on which the waveguideunit 22 is located, when the first reflection subunit 204 as shown inFIGS. 8A and 8B is provided, it is possible to exit towards the firstside. In a second case, when the second reflection subunit 205 as shownin FIGS. 8A and 8B is provided, the collimated light corresponding tothe first image may exit towards a second side relative to the plane onwhich the waveguide unit 22 is located, the first side and the secondside are opposite sides relative to the plane on which the waveguideunit is located. Specifically, when the display device is applied to forexample a head-mounted electronic apparatus, it is possible to adopt theconfiguration example in the first case, the collimated lightcorresponding to the first image is made to exit towards the first side,that is, the collimated light is made to exit towards the eyes of a userwearing the head-mounted electronic apparatus. When the display deviceis applied to for example a wrist-mounted electronic apparatus, it ispossible to adopt the configuration example in the second case, thecollimated light corresponding to the first image is made to exittowards the second side, that is, the collimated light is made to exittowards the eyes of a user wearing and viewing the wrist-mountedelectronic apparatus. In addition, it will be further explained below indetail that the exit direction of the display device is set as requiredby viewing, for example, rotation of the first reflection subunit 204and/or the second reflection subunit 205 may be controlled, so as tocontrol the exit direction of the first reflection subunit 204 and/orthe second reflection subunit 205, thus achieving a switch ofbi-directional display of the display device.

Therefore, in the display device according to the seventh exemplaryembodiment of the present application, in the collimating unit 21, afolded imaging light path between the first collimating subunit 201 andthe second collimating subunit 202 is implemented by using thepolarization beam splitter 203, thereby an overall size of the displaydevice is reduced.

FIG. 9 is a schematic diagram illustrating a display device according toan embodiment of the present application is applied to an electronicapparatus. As shown in FIG. 9, when the display device according to theembodiment of the present application is applied to an electronicapparatus, an outer side surface of the waveguide unit 22 adjacent to anexit surface of the collimated light is configured as needed. In anembodiment of the present application, an outer side surface of thewaveguide unit 22 adjacent to an exit surface of the collimated light isa curved surface. For example, when the display device shown in FIG. 9is applied to a wrist-mounted electronic apparatus, the outer sidesurface of the waveguide unit 22 (i.e., the visible area of the displaydevice) needs to be adaptive to the shape of an outer frame of thestrap-type electronic apparatus (i.e., dial of the smart watch), it isconfigured as a curved surface (preferably configured as circular). Aswill be readily appreciated by those skilled in the art, the technicalsolutions of the first to seventh exemplary embodiments of the presentapplication as described above with reference to FIGS. 2 to 8B can beconfigured in combination as needed, which all falls within the scopeclaimed by the present application. For example, in the display deviceaccording to the embodiment of the present application, it may beconfigured that light that forms the first image in the displaycomponent 10 is on a first plane 300, light that forms the virtual imagecorresponding to the first image and exits from the light pathconverting component 20 is on a second plane 400, there is a first anglebetween the first plane 300 and the second plane 400, so that a firstsize of the display component in a direction vertical to the first planeis smaller than a second size of the display component in a directionparallel to the first plane (as shown in FIG. 2); meanwhile, the displaycomponent 10 may adopt a single plane light source as backlight or usethe light source subunit provided at a side of the light guide subunitto generate a plane light source, so that thickness of the displaycomponent 10 in the display device is reduced in the emission directionof the initial light corresponding to the first image (as shown in FIGS.3 and 4); further, the display unit and the light emitting unit areintegrally provided on one side of the beam splitting unit, so that asize of the display device in the direction of generating the initiallight is smaller than a size of display device in the direction ofgenerating the initial light in the case where the display unit and thelight emitting unit are integrally provided on both sides of the beamsplitting unit (as shown in FIG. 6); meanwhile, the substrate subunit inthe display unit of the display device is made from non-metallicmaterial that satisfies a predetermined intension, and thickness of thesubstrate subunit is less than that of the substrate subunit made frommetallic material that satisfies a predetermined intension (as shown inFIG. 7); and meanwhile, a folded imaging light path is implemented inthe collimating unit by using the polarization beam splitter, thereby anoverall size of the display device is reduced.

In the above, the display device according to the embodiments of thepresent application is described with reference to FIGS. 1 to 9.Hereinafter, an electronic apparatus to which the display deviceaccording to the embodiments of the present application is applied willbe further described.

An electronic apparatus to which the display device according to theembodiments of the present application is applied may be any electronicapparatus that includes a display device (that is, the display of theelectronic apparatus in some cases), it may be a wearable electronicapparatus or any other type of electronic apparatus. In the case wherethe electronic apparatus is a wearable electronic apparatus, theelectronic apparatus comprises a body device (that is, the body of theelectronic apparatus in some cases) and a fixing device connected withthe body device and configured to fix a position relationship relativeto a user of the electronic apparatus. Further, in the case where theelectronic apparatus is a head-mounted electronic apparatus, the fixingdevice may have a corresponding support component according to the shapeof the head-mounted electronic apparatus (e.g., the head-mountedelectronic apparatus is smart glasses or a helmet-type display). Forexample, in the case of the smart glasses, the fixing device is twosupport components connected at both ends of the smart glasses (i.e.,glass legs and nose holder), or three support components connected atboth ends and in the middle of the smart glasses (i.e., glass legs andnose holder and glass frame), so that the glass legs located at two endsof the space and the nose holder located in the middle of the space forman approximate rectangular space for surrounding a person's head. Whenthe user wears the helmet-type electronic apparatus, a visible area ofthe display device is set within the region of the user's eye, so thatthe emission direction of the display device is towards the user's eyes.Further, the electronic apparatus may also be a wrist-mounted electronicapparatus, descriptions will be provided below in further detail withreference to the accompanying drawings.

FIGS. 10A to 10E are structural block diagrams illustrating anelectronic apparatus according to an embodiment of the presentapplication. As shown in FIG. 10A, the electronic apparatus 100according to an embodiment of the present application comprises a bodydevice 101 and a fixing device 102 connected with the body device 101.The fixing device 102 includes at least a fixed state in which thefixing device 102 can serve as at least a portion of an annular space oran approximate annular space that satisfies a first predeterminedcondition, the annular space or the approximate annular space cansurround periphery of a columnar body that satisfies a secondpredetermined condition.

Specifically. FIGS. 10B and 10C respectively illustrate two fixed statesthat the fixing device 102 is connected with the body device 101. In afirst fixed state as shown in FIG. 10B, the fixing device 102 and thebody device 101 form a closed annular space, wherein the fixing device102 and the body device 101 constitute a portion of the annular space,respectively. In a second fixed state as shown in FIG. 10C, the fixingdevice 102 and the body device 101 form an approximate annular spacewith a small opening, wherein the fixing device 102 and the body device101 constitute a portion of the approximate annular space, respectively.In an embodiment of the present application, the body device 101 is adial portion of a smart watch, and the fixing device 102 is a strapportion of the smart watch. The annular space or the approximate annularspace formed by the fixing device 102 and the body device 101 cansurround the wrist of the user of the smart watch which serves as thecolumnar body, and a diameter of the annular space or the approximateannular space is greater than a diameter of the user's wrist and smallerthan a diameter of the user's fist.

Further, the annular space or the approximate annular space may beformed by the fixing device 102 alone. As shown in FIGS. 10D and 10E,the body device 101 may be provided on the fixing device 102 (i.e., thebody device 101 is attached to the fixing device 102 in the manner ofsurface contact), so that the fixing device 102 alone forms the annularspace (FIG. 1 OD) or the approximate annular space (FIG. 10E) thatsurrounds the columnar body. The fixing device 102 is arranged with afixing mechanism like hasps, snaps, zippers and so on (not shown).

Further, as shown in FIGS. 10A to 10E, a processing unit 103 and a firstdisplay device 104 are arranged on the body device 101. The processingunit 103 is configured to generate a first image to be displayed andexecute display control. In the electronic apparatus 100 shown in FIGS.10A to 10E, the first display device 104 is arranged on the body device101. However, as will be readily appreciated by those skilled in theart, the present application is not limited thereto, the first displaydevice 104 may also be arranged on the fixing device 102, or arrangedacross the body device 101 and the fixing device 102. The first displaydevice 104 is the display device according to the embodiments of thepresent application described above with reference to FIGS. 1 to 9. Thatis, the first display device 104 includes a display component (notshown) configured to output initial light corresponding to a firstimage; and a light path converting component (not shown) configured toreceive the initial light corresponding to the first image from thedisplay component, and perform light path conversion on the initiallight corresponding to the first image to form a virtual imagecorresponding to the first image, so that a viewer at a particularposition perceives the virtual image corresponding to the first image,wherein a size of the virtual image perceived is greater than a displaysize of the display component.

FIG. 11 is a schematic diagram illustrating an electronic apparatus 100according to an embodiment of the present application. As shown in FIG.11, the first display device 104 includes a display component 10, acollimating unit 21, and a waveguide unit 22.

Further, the first display device 104 has a visible area 200, which isat least a portion of the surface that exits light of the waveguide unit22, the visible area 200 corresponds to the portion in the light pathconverting component from which the light corresponding to the firstimage exits from the light path converting component, and the visiblearea 200 is set within the body device 101.

Further, in the embodiment shown in FIG. 11, a partial area of thewaveguide unit 22 and the collimating unit 21 are provided across thebody device 101 and the fixing device 102, and the display component 10is provided within the body device 101. As will be readily appreciated,internal configuration of the electronic apparatus according to theembodiment of the present application is not limited thereto. The otherareas in the light path converting component outside the visible areaare set within the body device 101 and/or the fixing device 102, and thedisplay component 10 is provided within the body device 101 and/or thefixing device 102, wherein an angle between the visible area 200 and theother areas outside the visible area 200 is within a predetermined anglerange. As examples, the predetermined angle range may be 0 to 90 degreesor 20 to 30 degrees.

FIG. 12 is another structural block diagram illustrating an electronicapparatus according to an embodiment of the present application.Compared with the electronic apparatus 100 according to the embodimentof the present application as described above with reference to FIGS.10A to 10E, the electronic apparatus 110 according to a secondembodiment of the present application as shown in FIG. 12 furthercomprises a second display device 105. The second display device 105 isa display device whose type is different than that of the first displaydevice 104. For example, the second display device 105 includes, but notlimited to, a liquid crystal display device, an organicelectroluminescent display device, an organic light emitting diodedisplay device, an E Ink type display device or the like.

One of the first display device 104 and the second display device 105 isprovided on the body device 101, and the other is provided on the fixingdevice 102. As shown in FIG. 12, the first display device 104 isprovided on the body device 101 and the second display device 105 isprovided on the fixing device 102. The second display device 105 may beprovided on the body device 101, and the first display device 104 isprovided on the fixing device 102. Similar to the first display device104, a display direction of the second display device 105 is the outwarddirection of the annular space or the approximate annular space.Typically, the second display device 105 is for displaying content thatneed not be amplified to display like time indication.

Moreover, not limited to the case shown in FIG. 12, the first displaydevice 104 and the second display device 105 may be simultaneouslyprovided on the body device 101 or the fixing device 102. For example,the first display device 104 and the second display device 105 areprovided on the body device 101 side by side. Alternatively, the firstdisplay device 104 and the second display device 105 are provided at twoopposite positions through the radial direction of the fixing device102.

FIG. 13 is another structural block diagram illustrating an electronicapparatus according to an embodiment of the present application.Compared with the electronic apparatus 100 according to the embodimentof the present application as described above with reference to FIGS.10A to 10E, the electronic apparatus 120 according to an embodiment ofthe present application as shown in FIG. 13 further comprises a sensorunit 106. As shown in FIG. 13, the sensor unit 106 is provided on thebody device 101. However, the sensor unit 106 may be also provided onthe fixing device 102.

The sensor unit 106 is configured to generate a first control signalwhen sensing that a first predetermined condition is satisfied, theprocessing unit 103 controls ON/OFF of the first display device 104based on the first control signal. In an embodiment of the presentapplication, the sensor unit 106 is an acceleration sensor, the firstpredetermined condition is an acceleration component value in thegravity direction is greater than a predetermined value (i.e., puttingdown the electronic apparatus 100 from the use state that the user isviewing the first display device 104), and the processing unit 103controls the first display device 104 to close based on the firstcontrol signal. As will be readily appreciated by those skilled in theart, the sensor unit 106 according to an embodiment of the presentapplication is not limited to the acceleration sensor, it may includeother sensor units that can generate a control signal instead.

FIGS. 14A and 14B each is another structural block diagram illustratingan electronic apparatus according to an embodiment of the presentapplication. Compared with the electronic apparatus 110 according to theembodiment of the present application as described above with referenceto FIGS. 10A to 10E, the electronic apparatus 130 according to anembodiment of the present application as shown in FIGS. 14A and 14Bfurther comprises an image capturing unit 107. The image capturing unit107 may be provided on the body device 101 or the fixing device 102.Specifically, FIG. 14A shows the case that the first display device 104is provided on the body device 101 and the image capturing unit 107 isprovided on the fixing device 102. FIG. 14B shows the case that both thefirst display device 104 and the image capturing unit 107 are providedon the fixing device 102. No matter the case in FIG. 14A or FIG. 14B, animage capturing direction of the image capturing unit 107 and an imageoutput direction of the first image display device 104 are opposite inthe radial direction of the annular space or the approximate annularspace. Thus, when the realistic image captured by the image capturingunit 107 is displayed on the first display device 104, since thecapturing direction of the image capturing unit 107 is the same as theviewing direction of the user's eyes, so that the user can view theimage that looks like transmitting through the electronic apparatus 140via the first display device 104.

In an embodiment of the present application, the image capturing unit107 is configured to capture user interaction to generate a first imagecapturing signal, the processing unit 103 converts the first imagecapturing signal into a second control signal to control the firstdisplay device 104 to display a second image.

In another embodiment of the present application, the image capturingunit 107 is configured to capture a first sub-image in the imagecapturing direction, the processing unit 103 generates a secondsub-image. The second sub-image may be an identification image relativeto the first sub-image obtained by analyzing the first sub-image, andmay also be an identification image acquired based on for example a GPSsensor. Further, the second sub-image may also be an identificationimage acquired by searching from a server via the network based on thefeature information obtained from the first sub-image. The first imageis generated by superimposing the first sub-image and the secondsub-image, so as to be displayed by the first display device 104.

FIG. 15 is another structural block diagram illustrating an electronicapparatus according to an embodiment of the present application.Compared with the electronic apparatus 100 according to an embodiment ofthe present application as described above with reference to FIGS. 10Ato 10E, the electronic apparatus 140 according to an embodiment of thepresent application further comprises a third display device 108. In theelectronic apparatus 140 shown in FIG. 15, the third display device 108and the first display device 104 are provided on the body device 101together. As will be readily appreciated, the present application is notlimited thereto, and the third display device 108 and the first displaydevice 104 may also be provided on the fixing device 102 together.

The third display device 108 is a display device whose type is the sameas that of the first display device 104. That is, the third displaydevice is for forming an enlarged virtual image corresponding to a thirdimage. The third image is associated with the first image, when the twoeyes of the viewer accordingly view the first display device 104 and thethird display device 108, respectively, the viewer can view and perceivea stereoscopic image corresponding to the first image and the thirdimage.

FIG. 16 is another structural block diagram illustrating an electronicapparatus according to an embodiment of the present application.Compared with the electronic apparatus 100 according to an embodiment ofthe present application as described above with reference to FIGS. 10Ato 10E, in the electronic apparatus 150 according to an embodiment ofthe present application as shown in FIG. 16, the first display device104 includes a first visible area 1041, the second display device 105includes a second visible area 1051, both the first visible area 1041and the second visible area 1051 are provided on the body device 101. Aswill be readily appreciated, the first visible area 1041 and the secondvisible area 1051 may be both provided on the body device 101, oralternatively, one of the first visible area 1041 and the second visiblearea 1051 is provided on the body device 101 and the other is providedon the fixing device 102. As described above, the first visible area1041 and the second visible area 1051 are areas that are viewed by theuser to perceive the displayed content in the first display device 104and the second display device 105.

FIGS. 17A and 17B respectively are a plan view and a side viewillustrating a first configuration example of a visible area of anelectronic apparatus according to an embodiment of the presentapplication.

As shown in FIG. 17A, the first visible area 1041 and the second visiblearea 1051 have a first configuration example of being providedoverlapped on the body device 101. The present application is notlimited thereto, the first visible area 1041 and the second visible area1051 may also be provided overlapped on the fixing device 102.

FIG. 17B further illustrates a side view of a first configurationexample that the first visible area 1041 and the second visible area1051 are provided overlapped. As shown in FIG. 17B, the first displaydevice 104 configured with the first visible area 1041 and the seconddisplay device 105 configured with the second visible area 1051 areprovided as shown in FIG. 17B, so that light transparency of at leastthe visible areas that are located at the outer side of the annularspace or the approximate annular space within the first visible area1041 and the second visible area 1051 satisfies a predeterminedcondition in the outward direction of the annular space or theapproximate annular space. The predetermined condition may be that lighttransparency is greater than a predetermined value (such as 70%). In theexample shown in FIGS. 17A and 17B, the first visible area 1041 is madeat the outer side. The present application is not limited thereto, thesecond visible area 1051 may also be made at the outer side. By means ofmaking the light transparency of the first visible area 1041 greaterthan or equal to a predetermined value, the first visible area 1041 willnot affect the display function of the second visual display region1051, thus achieving a more compact configuration.

FIGS. 18A and 18B respectively are a plan view and a side viewillustrating a second configuration example of a visible area of anelectronic apparatus according to an embodiment of the presentapplication.

As shown in FIG. 18A, the first visible area 1041 and the second visiblearea 1051 have a second configuration example of being providedadjacently on the body device 101 or the fixing device 102. As shown inFIGS. 18A and 18B, the first visible area 1041 and the second visiblearea 1051 are provided adjacently on the body device 101. The presentapplication is not limited thereto, and the first visible area 1041 andthe second visible area 1051 may be on the body device 101 and thefixing device 102, respectively, and a spacing between the first visiblearea 1041 and the second visible area 1051 is less than a threshold(e.g., 1 cm).

FIG. 18B further illustrates a side view of a second configurationexample that the first visible area 1041 and the second visible area1051 are provided overlapped. As shown in FIG. 18B, the first displaydevice 104 configured with the first visible area 1041 and the seconddisplay device 105 configured with the second visible area 1051 areprovided adjacently as shown therein, and the display directions of thefirst visible area 1041 and the second visible area 1051 both are in theoutward direction of the annular space or the approximate annular space.

FIGS. 19A and 19B respectively are a plan view and a side viewillustrating a third configuration example of a visible area of anelectronic apparatus according to an embodiment of the presentapplication.

As shown in FIG. 19A, the first visible area 1041 and the second visiblearea 1051 have a third configuration example of being providedadjacently on the body device 101 or the fixing device 102. Differentthan the second configuration example as shown in FIGS. 18A and 18B, asshown in FIG. 19B, the display direction of one of the first visiblearea 1041 and the second visible area 1051 is in the outward directionof the annular space or the approximate annular space, and the displaydirection of the other is in a direction vertical to the outwarddirection of the annular space or the approximate annular space.

In addition, a mutual switching between an overlapped state and anon-overlapped state of the first visible area 1041 and the secondvisible area 1051 will be described with reference to FIGS. 20A to 20D.

FIGS. 20A to 20D respectively are a plan view and a side viewillustrating first to third examples of a mutual movement state of avisible area of an electronic apparatus according to an embodiment ofthe present application. For convenience of description, with the firstvisible area 1041 and the second visible area 1051 being both providedon the body device 101 as example. As will be readily appreciated, thepresent application is not limited thereto, the first visible area 1041and the second visible area 1051 may also be both provided on the fixingdevice 102. The body device 101 further includes a first subunit 801 anda second subunit 802, one of the first visible area 1041 and the secondvisible area 1051 is set on the first subunit 801, and the other is seton the second subunit 802, the first subunit 801 and the second subunit802 are connected via a connecting unit, so that the first visible area1041 and the second visible area 1051 switch between a first status anda third status of being provided non-overlapped.

Specifically, as shown in FIG. 20A, the first subunit 801 and the secondsubunit 802 are connected via a slide track component (not shown) whichserves as a connecting unit. The first visible area 1041 is set withinthe first subunit 801, the second visible area 1051 is set within thesecond subunit, when the first subunit 801 and the second subunit 802slide apart relatively, the first visible area 1041 and the secondvisible area 1051 may be displayed simultaneously and may also bedisplayed separately. Further, it may be configured that a sliding ofthe first subunit 801 relative to the second subunit 802 generates acontrol signal that controls the second visible area 1051 to display orto close. Further, when the first subunit 801 slides apart relative tothe second subunit 802 to the third state, light transparency of thefirst visible area 1041 satisfies a predetermined condition in theoutward direction of the annular space or the approximate annular space.In this way, the user can see his/her own skin through the electronicapparatus 100, like no first visible area 1041 is set.

As shown in FIGS. 20B to 20D, the first subunit 801 and the secondsubunit 802 are connected via a rotating shaft component which serves asa connecting unit. The first visible area 1041 is set within the firstsubunit 801, the second visible area is set within the second subunit.When the first subunit 801 and the second subunit 802 are rotatedrelatively, the first visible area 1041 and the second visible area 1051may be displayed simultaneously and may also be displayed separately.Further, it may be configured that a rotation of the first subunit 801relative to the second subunit 802 generates a control signal thatcontrols the second visible area to display or to close.

It should be noted that, as shown in FIGS. 20A and 20B, when the firstsubunit 801 is slide or rotated to switch to the third state, thedisplay direction of the first visible area 1041 does not change, theuser can continue to view the display within the first visible area 1041in the original display direction.

As shown in FIGS. 20C and 20D, when the first subunit 801 is rotated toswitch from the first state to the third state, it needs to furtherconfigure the first subunit 801 so that the user can view the displaywithin the first visible area 1041 from the same viewing direction inthe first state and the third state, thereby further enhancing userconvenience. To this end, in an embodiment of the present application,the first subunit 801 may be configured as able to flip per se, thefirst subunit 180 flips 180 degrees while being rotated relative to thesecond subunit 802, so that the first visible area that turns to therear again turns to the original display direction, that is, the displaydirection of the visible area 1041 remains unchanged after the rotation.

Further, in another embodiment of the present application, the firstdisplay device 104 is configured to perform bi-directional displaythrough a light path selecting unit or an optical switching unit.Specifically, in the light path of the first display device 104 (e.g.,in the waveguide unit), a beam splitter is provided so as to guide thelight beam that forms the amplified virtual image to two displaydirections set opposite in the first display device 104, respectively.In addition, it is also possible to set an optical path switcher in thelight path of the first display device 104, like a reflection mirror, soas to guide the light beam that forms the amplified virtual image to twodisplay directions set opposite in the first display device 104,respectively. That is, when the first subunit 801 is rotated relative tothe second subunit 802, in response to the rotation, the displaydirection of the first visible area of the first display device 104performs a bidirectional switching through the beam splitter or theoptical path switcher as mentioned above, so that the display directionof the first visible area 1041 remains unchanged with regard to the userafter the rotation.

FIGS. 21A to 21D are schematic diagrams illustrating a first specificconfiguration of a fixing device of an electronic apparatus according toan embodiment of the present application.

As shown in FIG. 21A, the fixing device 102 includes at least a fixedstate in which the fixing device 102 can serve as at least a portion ofan annular space or an approximate annular space that satisfies a firstpredetermined condition, the annular space or the approximate annularspace can surround periphery of a columnar body that satisfies a secondpredetermined condition.

Specifically, the fixing device 102 and the body device 101 form aclosed annular space, wherein the fixing device 102 and the body device101 constitute a portion of the annular space, respectively, or thefixing device 102 and the body device 101 form an approximate annularspace with a small opening, wherein the fixing device 102 and the bodydevice 101 constitute a portion of the approximate annular space,respectively. Alternatively, the annular space or the approximateannular space may also be formed by the fixing device 102 alone. In anembodiment of the present application, the body device 101 is a dialportion of a smart watch, and the fixing device 102 is a strap portionof the smart watch. The annular space or the approximate annular spaceformed by the fixing device 102 and the body device 101 can surround thewrist of the user of the smart watch which serves as the columnar body,wherein in the case of forming an approximate annular space, a firstpredetermined condition that a gap of the approximate annular space inthe annular circumference should be smaller than a diameter of thecylinder body that is to be surrounded should be satisfied. In addition,a diameter of the annular space or the approximate annular space shouldfurther satisfy a second predetermined condition of being greater than adiameter of the user's wrist and smaller than a diameter of the user'sfist.

In order to realize the aim that the electronic apparatus 100 canprovide different ways of wearing according to user needs and usagescenarios, a diameter of the annular space or the approximate annularspace formed by the first fixing device 102 as shown in FIG. 21A may bechanged. More preferably, a difference between a maximum and a minimumof the diameter is greater than a predetermined threshold. For example,the first fixing device 102 can fix the electronic apparatus 100 to theuser's wrist, and when the user wishes to view a long time or withoutusing the two hands, the fixing device 102 can fix the electronicapparatus 100 to the user's head. When fixed to the user's wrist, adiameter of the annular space or the approximate annular space should beabout 10 cm, and when fixed to the user's head, a diameter of theannular space or the approximate annular space should be about 30 cm.The annular space or the approximate annular space formed by the firstfixing device 102 has a maximum of about 30 cm and a minimum of about 10cm. A difference between a maximum and a minimum of the diameter isgreater than a predetermined threshold, e.g., the predeterminedthreshold may be 10 cm to the least, and preferably 20 cm; oralternatively, the predetermined threshold may be that the maximum istwo times the minimum, and preferably three times. That is, the firstfixing device 102 can provide the user with an adaptable adjustmentrange large enough to meet requirements in different usage scenarios.

FIGS. 21B to 21D illustrate several ways to implement the first fixingdevice 102 with an adaptable large-enough adjustment range in FIG. 21A.

As shown in FIG. 21B, the first fixing device 102 may include at leastone elastic unit 1021. The at least one elastic unit 1021 has a relaxedfirst state and a tensioned second state. When the elastic unit 1021 iscompletely relaxed, a diameter of the annular space or the approximateannular space is at the maximum; when the elastic unit 1021 iscompletely tensioned, a diameter of the annular space or the approximateannular space is at the minimum.

More specifically, the at least one elastic unit 1021 may refer to beingcomposed by a plurality of discrete elastic subunits, or including onlyone complete elastic unit. In the case of including a plurality ofdiscrete elastic subunits, it may further include a plurality ofdiscrete elastic subunits that contain elastic space and connected by arotating shaft, or a plurality of discrete elastic subunits that containnon-elastic space and connected flexibly.

As shown in FIGS. 21C and 21D, the first fixing device 102 may furtherinclude an adjusting unit 1022 or an adjusting unit 1023 for controllinga diameter of the annular space or the approximate annular space to varybetween the maximum and the minimum. In the case shown in FIG. 21C, theadjusting unit 1022 is for example a component of a belt buckle, and itachieves control over the diameter of the annular space or theapproximate annular space by controlling a length of overlapped portionsin the first fixing device 102. In an embodiment of the presentapplication, the adjusting unit 1022 is a rigid component having upperand lower portions that can overlap, when needs to be fixed to acolumnar body with a large diameter, it is possible to reduce the lengthof the portions that can overlap to smaller (even until it is fullyextended and has no overlapped portions), so as to form a largerdiameter of the annular space or the approximate annular space;conversely, when needs to be fixed to a columnar body with a smalldiameter, it is possible to increase the upper and lower portions thatcan overlap to greater (even overlapped portions with three layers ormore is formed), so as to form a smaller diameter of the annular spaceor the approximate annular space. After adaptive adjustment is madeaccording to the columnar body to be fixed to, the adjusting unit 1022is rigidly fixed.

In the case shown in FIG. 21D, the adjusting unit 1023 is for example anextending component, which achieves control over the diameter of theannular space or the approximate annular space by extending its ownlength as needed. In an embodiment of the present application, theadjusting unit 1023 may include a cavity in which a retractablecomponent is accommodated, such as a roller wheel. The retractablecomponent such as a roller wheel is stretched according to the diameterof the columnar body that needs to be fixed to, when needs to be fixedto a columnar body with a large diameter, it is possible to pull out thewinding portion around the roller wheel, so as to form a large diameterof the annular space or the approximate annular space; conversely, whenneeds to be fixed to a columnar body with a smaller diameter, it ispossible to wind more portions around the roller wheel, so as to form asmaller diameter of the annular space or the approximate annular space.In addition, as will be readily appreciated, the first fixing deviceaccording to an embodiment of the present application is not limitedthereto, it may further include an external extending component, so asto connect or remove a proper external extending component according tothe diameter of the columnar body that needs to be fixed to.

In addition, the fixing device according to an embodiment of the presentapplication is not limited to the manner of forming an annular space oran approximate annular space. In an embodiment of the presentapplication, the body device 101 may be coupled with a different fixingdevice via a connecting unit, thus achieving different using states tobe adaptive to different wearing manners.

As shown in FIG. 22A, the body device 101 includes a first connectingunit 601, the first fixing device 102 includes a second connecting unit602, the body device 101 and the first fixing device 102 are connectedto each other via the coupling of the first connecting unit 601 and thesecond connecting unit 602. In an embodiment of the present application,the body device 101 is a dial portion of a smart watch, and the fixingdevice 102 is a strap portion of the smart watch, then the firstconnecting unit 601 and the second connecting means 602 are rivetingcomponents of the dial and the strap.

As shown in FIG. 22B, the electronic apparatus 100 may have a usingstate different than that shown in FIG. 22A. The body device 101 may bedisconnected from the coupling with the first fixing device 102, andestablish a coupling with a third connecting unit 603 in the secondfixing device 105 via the first connecting unit 601, thus forming asecond fixed state.

The body device 101 may include a first sub-device and a secondsub-device that are connected via a connecting sub-device. The relativeposition of the first sub-device and the second sub-device may bechanged. Specifically, in the example shown in FIGS. 22A and 22B, in anembodiment of the present application, the body device 101 may include afirst sub-device and a second sub-device that can flap or slide aparthorizontally, when the relative position of the first sub-device and thesecond sub-device changes (i.e., flap or slide apart horizontally), itswitches from an overlapped state to a non-overlapped state. Both sidesof each of the sub-devices are arranged with the first connecting unit601. When needs to couple with the second fixing device 105, the bodydevice 101 is outspreaded. For example, it is outspreaded into the glasslens shape as shown in FIG. 22B from the dial shape as shown in FIG.22A. Accordingly, the second fixing device 105 may be composed of two tothree sub-portions. For example, in the case where the body device 101is outspreaded into the entire front portion of the smart glasses, thesecond fixing device 105 is two support components connected at bothends of the smart glasses (i.e., glass legs and nose holder). Further,in the case where the body device 101 is a part of the entire frontportion of the smart glasses, the body device 101 may be fixed to thesecond fixing device 105 (not shown in particular) as one lens or aportion of one lens (e.g., embedded with edges being aligned totally orinstalled via a corresponding interface). In this case, the secondfixing device 105 is three support components connected at both ends andin the middle of the smart glasses (i.e., glass legs and nose holder andglass frame). In the second fixed state shown in FIG. 22B, the secondfixing device 102 is at least a portion of the approximate rectangularspace that can surround periphery of an object that satisfies a thirdpredetermined condition. Specifically, in the case where the object is aperson's head, the third predetermined condition is projecting portionswith numbers and positions corresponding to the second fixing device 105(i.e., the person's ears and nose). That is, in the approximaterectangular space for surrounding the person's head, the second fixingdevice 105 has corresponding support components corresponding to thecorresponding projecting portions to be fixed, e.g., the glass legslocated at two ends of the space and the nose holder located in themiddle of the space form an approximate rectangular space forsurrounding the person's head.

As shown in FIGS. 22A and 22B, the electronic apparatus 100 may switchbetween the first fixed state and the second fixed state, so that in thecase of wishing to view a long time or without using the two hands, theelectronic apparatus 100 can change from the using manner of the smartwatch to that of the smart glasses.

FIG. 23 is another schematic diagram illustrating an electronicapparatus according to an embodiment of the present application. Asshown in FIG. 23, the electronic apparatus according to the embodimentof the present application also includes a body device 101 and a firstfixing device 102. Specifically, the body device 101 includes at leastone first subunit (first subunits a1 to a3), the first fixing device 102includes at least one second subunit (second subunits b1 to c3), and theat least one first subunit and the at least one second subunit aredata-connected or electrically connected. The plurality of firstsubunits in the body device 101 may be parallel to each other orconnected in-serial. Similarly, the plurality of second subunits in thefixing device 102 may be parallel to each other or connected in-serial.Further, the at least one first subunit may be connected to the firstfixing unit 102 via the body device 101, and then establish a data orelectric connection with the at least one second subunit. Still further,the at least one subunit can establish a data or electric connectionwith the second subunit directly. The first subunit and the secondsubunit may be a display unit, a touch unit, a sensing unit, a circuitunit, a battery unit, a communication unit, a positioning unit, or animage capture unit and so on. The at least one second subunit isconnected to the first fixing device 102 via a detachable connectioninterface. Specifically, the plurality of second subunits may be mountedwithin the cavity of the first fixing device 102 via a single interface.Alternatively, the plurality of second subunits may be mounted withinthe cavity of the first fixing device 102 via a plurality of interfacecorresponding thereto. Further, the second subunits may be installed viaan external interface and fixed to the outer surface of the first fixingdevice 102.

Specifically, when the coupling between the body device 101 and thefirst fixing device 102 are disconnected, functions required by acurrent user are achieved by the respective subunits in the body device101, so that in this case the electronic apparatus 100 is the lowestlightweight and have the lowest power consumption. That is, the firstsubunit included by the body device is capable of supporting theoperation of the electronic apparatus. For example, when the body device101 includes the processing unit 103, the first display device 104, anda necessary power supply unit (not shown), the body device 101 canperform the display function of the electronic apparatus 100. Further,when equipped with a storage unit or a communication unit, the bodydevice 101 can correspondingly perform a data storage function and acommunication function, without being coupled to the first fixing device102.

One or more of the at least one first subunit may be a type of subunitdifferent than one or more of the at least one second subunit. Thus,function configurations adaptive to different usage scenarios areimplemented by different combinations of the first subunit and thesecond subunit.

Further, one or more of the at least one first subunit may be the sametype of subunit as one or more of the at least one second subunit.Typically, performance of the first subunit is lower than performance ofthe second subunit of same type. For example, a battery capacity of thefirst subunit that serves a power supply unit is below a batterycapacity of the second subunit that serves a power supply unit; acommunication distance and a communication rate of the first subunitthat serves a communication unit is below a communication distance and acommunication rate of the second subunit that serves a communicationunit. More specifically, a sum of the battery capacity of the secondsubunits that serve as power supply units in the first fixing device 102is greater than a sum of the battery capacity of the first subunits thatserve as power supply units. Alternatively, the battery capacity of eachof the second subunits that serve as power supply units in the firstfixing device 102 is greater than the battery capacity of each of thefirst subunits that serve as power supply units. In this way, the usercan freely configure the various subunits as needed in practice. Forexample, in the case where the user is in a travel that requires a longendurance or the like, the second subunit whose battery capacity ishigher is configured in the first fixing device 102. When in the casewhere the user is in a movement condition that requires lightweight, theunnecessary second subunit in the first fixing device 102 is removed,and power is provided only by the first subunit in the body device 101alone which serves as the power supply unit. Further, when the bodydevice 101 is configured with the first subunit having a short-rangecommunication capability, the electronic apparatus 100 can establish adata connection such as Bluetooth-based with another independentelectronic apparatus (such as a smart phone), to achieve functionextension of this independence electronic apparatus, such as displayextension (displaying navigation prompt information in a navigationscenario) or reminder extension (displaying caller identificationinformation in the scenario of call-in). And when the first fixingdevice 102 is configured with the first subunit having a long-rangecommunication capability (e.g., a mobile communication network datacommunication capability or a wireless local area network datacommunication capability), operation of the above first subunit may besuspended (the unit having the short-range communication capability),the electronic apparatus 100 becomes an independent electronic apparatusthat can replace for example a smart phone, especially for the secondsubunit having the mobile communication network (such as 3G, 4G or thelatter) data communication capability (if coverage of the wireless localarea network is broad enough, it is possible to achieve the sameeffect). In other words, the user can properly configure subunits withdifferent communication capabilities according to usage scenarios andrequirements. For example, in the case where the user is convenient tocarry the portable smart phone, it is possible to use only theshort-range communication unit in the body device 101, so that theelectronic apparatus 100 in the embodiment of the present application isused as an accessory of the smart phone; when the user is inconvenientto carry the smart phone (e.g. during exercising), it is possible to usethe long-range communication unit, the electronic apparatus 100 in theembodiment of the present application is used as a device having anindependent communication function.

Further, the body device 101 and the first subunit and the secondsubunit in the first fixing device 102 may also be configured withgravity distribution of the electronic apparatus itself beingconsidered, thereby achieving a uniform gravity distribution of theelectronic apparatus, to provide more comfortable wearing experience.Specifically, the body device 101 and the cavity of the first fixingdevice 102 in which the first subunit and the second subunit are mountedor an external interface may be distributed symmetrically. For example,in the electronic apparatus 100 in the state of for example a smartwatch or smart glasses, the first fixing device 102 provided on bothsides of the body device 101 has the same number of cavities or externalinterfaces. In addition, the subunits installed into the cavity orexternal interface are configured in a uniform specification. Forexample, they have the same size, and have almost the same weight (aweight difference between respective subunits may be designed to besmaller than a predetermined weight threshold, e.g., 20 g).

As described above, the electronic apparatus 100 according to theembodiment of the present application may have a variety of usingstates, such as the smart watch state, the smart glasses state etc. Inaddition, the first display device 104 in the electronic apparatus 100needs to be designed and provided on the body device 101 or the fixingdevice 102 according to different using states and scenarios, or evenconfigured across both the body device 101 and the fixing device 102. Inorder to achieve such electronic apparatus 100 with a variety of modesand states, it is necessary to provide a more flexible design for thelight path of the first display device 104.

FIGS. 24A to 24C are schematic diagrams illustrating a display device inan electronic apparatus according to an embodiment of the presentapplication. Compared with the display device described with referenceto FIGS. 1-9, the first display device 104 further includes a flexiblelight guide unit 303.

Specifically, as shown in FIG. 24A, the flexible light guide unit 303 isprovided between the display component 10 and the light path convertingunit 20 and configured to guide the light corresponding to the firstimage to the light path converting unit 20. Further, as shown in FIGS.24B and 24C, the flexible light guide unit 303 may also be provided inthe display component 10 (FIG. 24B) or in the optical path convertingcomponent 20 (FIG. 24C).

In FIG. 24A, the flexible light guide unit 303 guides the lightcorresponding to the first image as emitted by the display component 10to the light path converting component 20, so that the light pathconverting unit 20 forms an amplified virtual image corresponding to thefirst image. Therefore, because of the flexible property of the flexiblelight guide unit 303, it can be adaptive to different designrequirements, to provide bending or extending of the internal light pathof the electronic apparatus 100. As such, the display component 10 andthe light path converting component 20 of the first display device 104may be provided separately. That is, the display component 10 may beprovided in the body device 101, whereas the light path convertingcomponent 20 may be provided in the first fixing device 102, and viceversa.

In FIG. 24B, the display component 10 further includes a light emittingunit 11 and a display unit 12 (as described above with reference to FIG.3). The flexible light guide unit 300 is provided between the lightemitting unit 11 and the display unit 12 for guiding the light emittedby the light emitting unit 11 to the display unit 12. As such, the lightemitting unit 11 and the display unit 12 may be provided separately.That is, the light emitting unit 11 may be provided in the body device101, whereas the display unit 12 may be provided in the first fixingdevice 102, and vice versa.

In FIG. 24C, the light path converting unit 20 includes a collimatingunit 21 and a waveguide unit 22 (as described above with reference toFIGS. 8A and 8B), the flexible light guide unit 303 is provided betweenthe collimating unit 21 and the waveguide unit 22, for guiding the lightcorresponding to the first image to the waveguide unit 22. As such, thecollimating unit 21 and the waveguide unit 22 may be providedseparately. That is, the collimating unit 21 may be provided in the bodydevice 101, whereas the waveguide unit 22 may be provided in the firstfixing device 102, and vice versa.

As described above, the flexible light guide unit 303 provided in thedisplay component 10 is for guiding the light before forming the firstimage, the flexible light guide unit 303 provided between the displaycomponent 10 and the light path converting unit 20 is for guiding thelight corresponding to the first image after forming the first image.

The first display device 104 in the electronic apparatus according tothe embodiment of the present application achieves bending or extendingof the internal light path by configuring the flexible light guide unit303 therein, so that the first display device 104 may be configuredacross both the body device 101 and the fixing device 102. That is, thedisplay component 10 and the light path converting component 20 in thefirst display device 104 are provided on the body device 101 and thefixing device 102, respectively, or, the light emitting unit 11 and thedisplay unit 12 in the display component 10 are provided on the bodydevice 101 and the fixing device 102, respectively. As such, since theflexible light guide unit 303 is almost unlimited by the externalphysical shape, the first display device 104 in the electronic apparatusaccording to the embodiment of the present application can configure itsinternal light path flexibly, in order to meet the different usingstates and requirements in practice.

In the following, the using state of the electronic apparatus accordingto an embodiment of the present application will be further describedwith reference to FIGS. 25A and 25B.

FIGS. 25A and 25B are schematic diagrams illustrating a using state ofan electronic apparatus according to an embodiment of the presentapplication. As shown in FIGS. 25A and 25B, in the electronic apparatusaccording to an embodiment of the present application, the first displaydevice 104 is configured across the body device 101 and the first fixingdevice 102. Specifically, the display component 10 in the first displaydevice 104 is provided in the first fixing device 102, and the lightpath converting unit 20 is provided in the body device 101. As describedabove, the electronic apparatus according to an embodiment of thepresent application is not limited thereto, it is also possible that thedisplay component 10 is provided in the body device 101 and the lightpath converting component 20 is provided in the first fixing device 102.Alternatively, it is also possible that the display component 10 or thelight path converting component 20 per se are provided across the bodydevice 101 and the first fixing device 102. Here, descriptions areprovided with the case illustrated by FIGS. 25A and 25B as example.

In addition to the body device 101 and the first fixing device 102, theelectronic apparatus shown in FIGS. 25A and 25B further comprises aconnecting device 106 through which the body device 101 and the fixingdevice 102 are connected. Further, the body device 101 and the fixingdevice 102 can move relatively. Specifically, in a first using state asshown in FIG. 25A (non-wearing state), the body device 101 and thefixing device 102 connected through the connecting device 106 are almoston the same plane, in a second using state as shown in FIG. 25B (wearingstate), the body device 101 and the fixing device 102 connected throughthe connecting device 106 move relatively, are in the position and angledifferent than the first using state.

Further, in the electronic apparatus shown in FIGS. 25A and 25B, theflexible light guide unit 303 is provided corresponding to theconnecting device 106, so that when the body device 101 and the fixingdevice 102 are in a different relative position, the flexible lightguide unit 303 is used for guiding delivery of the light. Specifically,in the case shown in FIGS. 25A and 25B, the flexible light guide unit303 is provided corresponding to the connecting device 106 means thatthe flexible light guide unit 303 travels through the internal of theconnecting device 106. The electronic apparatus according to anembodiment of the present application is not limited thereto, theflexible light guide unit 303 may be provided independent of theconnecting device 106 but bonded to each other, and thus the two areencapsulated by another encapsulation.

In the conventional wearable electronic apparatus equipped with noflexible light guide unit, no matter the body device and the fixingdevice of the electronic apparatus are connected via the connectingdevice or connected directly, when needs to configure a display unitlike the first display device 104, display-related components in thedisplay device must be configured on a rigid surface or an extendingsurface of the body device or the fixing device, which results in that aphysical size of the display-related components that can be accommodatedis very limited, or causes the plane for accommodating thedisplay-related components to enlarge unnecessarily, thereby the displayeffect to the user is limited or the wearing experience to the user torestricted.

The electronic apparatus according to an embodiment of the presentapplication are configured with the flexible light guide unit 303,thereby it solves the above technical problem. As will be readilyappreciated, the electronic apparatus according to an embodiment of thepresent application is not limited to the examples described withreference to FIGS. 25A and 25B. For example, the electronic apparatusaccording to another embodiment of the present application is allowed tohave no the connecting device 106 configured, instead, the body device101 and the fixing device 102 are connected directly. Regardless ofwhether the connecting device 106 is configured, since the first displaydevice 104 is configured with the flexible light guide unit 303, so thatthe respective components in the first display device 104 are configuredin the body device 101 or in the fixing device 102, or configured acrossthe body device 101 and the fixing device 102, as needed by design. Theflexible property of the flexible light guide unit 303 enables to beadaptive to the external shape of different electronic apparatus used,without restricting the display-related components within a singledisplay rigid plane.

In the above, the display device and the electronic apparatus using thedisplay device according to the embodiments are described with referenceto FIGS. 1 to 25B. The display device and the electronic apparatus usingthe display device according to the embodiments of the presentapplication can provide image or video display with larger size andhigher resolution without being restricted by size of the wearableelectronic apparatus itself, like a smart watch, thereby enhanceassociated user experience. In addition, the size and weight of thedisplay device are further reduced, so as to provide more comfortablewearing experience to the user. Further, it provides a more flexiblecomponent configuration manner, it is possible to adapt to specificdesigns aiming at different using states. Still further, it canadaptively provide a variety of wearing manners and a free combinationof and switching between a plurality of functional modules based onuser's different usage scenarios, needs, and the contents to bedisplayed. The electronic apparatus and the display method according tothe embodiments of the present application greatly enhance the userexperience with regard to the wearable electronic apparatus.

It should be noted that, in the specification, the terms “comprise”,“include” and any other variations thereof intend to cover nonexclusiveinclusion so that the procedure, the method, the product or theequipment including a series of elements include not only theseelements, but also other elements which are not listed explicitly, oralso include inherent elements of these procedure, method, product orequipment. In the case that there is no further limitation, elementsdefined by the expressions “comprise one . . . ” do not exclude therebeing additional identity elements in the procedure, method, product orequipment of the elements.

Finally, it should be noted that, the above-described series ofprocessings do not only comprise processings executed chronologically inthe order mentioned here, but also comprise processings executed inparallel or individually but not chronologically.

Through the above description of the implementations, a person skilledin the art can clearly understand that the present disclosure may beimplemented in a manner of software plus a necessary hardware platform,and the present disclosure may also be implemented fully by hardware.Based on such understanding, the technical solution of the presentdisclosure that contributes to the background art may be embodied inwhole or in part in the form of a software product. The computersoftware product may be stored in a storage medium, such as ROM/RAM,disk, CD-ROM, and include several instructions for causing a computerapparatus (which may be a personal computer, a server, or a networkdevice) to perform the method described in the various embodiments ofthe present disclosure or certain parts thereof.

Although the present disclosure has been described in detail in theabove, specific examples are applied in this text to demonstrate theprinciples and implementations of the present disclosure, thesedescriptions of the above embodiments are only to help understand themethod of the present disclosure and its core concept. Meanwhile, for aperson with ordinary skill in the art, depending on the concepts of thepresent disclosure, modifications may be made to the specificimplementations and applications. To sum up, contents of thisspecification should not be construed as limitation of the presentdisclosure.

The invention claimed is:
 1. A display device, comprising: a displaycomponent configured to output initial light corresponding to a firstimage to be displayed by the display device; and a light path convertingcomponent configured to receive the initial light corresponding to thefirst image from the display component, and perform light pathconversion on the initial light corresponding to the first image to forma virtual image corresponding to the first image, wherein the virtualimage corresponding to the first image is capable of being perceived ata particular position and a size of the virtual image perceived isgreater than a display size of the display component, wherein light thatforms the first image in the display component is on a first plane,light that forms the virtual image corresponding to the first image andexits from the light path converting component is on a second plane, andthere is a first angle between the first plane and the second plane, sothat a first size of the display component in a direction vertical tothe first plane is smaller than a second size of the display componentin a direction parallel to the first plane.
 2. The display deviceaccording to claim 1, wherein the display component comprises: a lightemitting unit configured to emit backlight towards a first direction;and a display unit provided within an irradiation area of the backlight,and configured to generate the initial light corresponding to the firstimage based on the first image, wherein the light emitting unitcomprises a light source subunit and a light guide subunit, the lightsource subunit is configured to emit light towards a second direction,the light guide subunit is provided within an irradiation area of thelight, and the light transmits through the light guide subunit to formthe backlight; wherein the first direction and the second direction aredifferent, so that a size of the display component in the firstdirection is smaller than a size of the display component in the firstdirection in the case that the first direction and the second directionare the same.
 3. The display device according to claim 2, wherein thedisplay unit comprises: a micro-display subunit configured with aplurality of arrays of pixel cells, each pixel cell being used forgenerating the initial light corresponding to the first image; a circuitboard subunit configured to provide a control signal based on the firstimage to control the pixel cells in the micro-display subunit togenerate the initial light corresponding to the first image; and asubstrate subunit configured to arrange the micro-display subunit andthe circuit board subunit thereon.
 4. The display device according toclaim 3, wherein the substrate subunit is made from non-metallicmaterial that satisfies a predetermined intension, and a thickness ofthe substrate subunit is less than that of the substrate subunit madefrom metallic material that satisfies a predetermined intension.
 5. Thedisplay device according to claim 1, wherein the display componentcomprises: a light emitting unit configured to generate and emit planebacklight; and a display unit provided within an irradiation area of theplane backlight, and configured to generate the initial lightcorresponding to the first image based on the first image.
 6. Thedisplay device according to claim 1, wherein the display componentcomprises: a light emitting unit configured to emit backlight; a beamsplitting unit through which the backlight from the light emitting unittransmits; a display unit provided within an irradiation area of thebacklight that transmits through the beam splitting unit, and configuredto generate the initial light corresponding to the first image based onthe first image, wherein the initial light corresponding to the firstimage from the display unit is guided to the light path convertingcomponent by the beam splitting unit.
 7. The display device according toclaim 1, wherein the display component comprises: a display unitconfigured to generate a display signal corresponding to the first imagebased on the first image; a light emitting unit configured to generatethe initial light corresponding to the first image based on the displaysignal; and a beam splitting unit configured to guide the initial lightcorresponding to the first image from the display unit to the light pathconverting component, wherein the display unit and the light emittingunit are integrally provided on one side of the beam splitting unit, sothat a size of the display device in a direction of generating theinitial light is smaller than a size of the display device in thedirection of generating the initial light in the case that the displayunit and the light emitting unit are integrally provided on both sidesof the beam splitting unit.
 8. The display device according to claim 1,wherein the light path converting component unit comprises a collimatingunit and a waveguide unit, the collimating unit is configured tocollimate the initial light corresponding to the first image from thedisplay component into collimated light corresponding to the firstimage, and lead the same into the waveguide unit; the waveguide unitguides the collimated light from the collimating unit to the particularposition, wherein the collimated light corresponding to the first imageforms the virtual image corresponding to the first image.
 9. The displaydevice according to claim 8, wherein the collimating unit comprises afirst collimating subunit and a second collimating subunit providedopposite to each other, and a polarization beam splitting unit providedbetween the first collimating subunit and the second collimatingsubunit, the initial light corresponding to the first image from thedisplay component is reflected by the polarization beam splitting unitto the first collimating subunit, thereafter it is collimated by thefirst collimating subunit and the second collimating subunit, and exitedby the polarization beam splitting unit as the collimated lightcorresponding to the first image.
 10. The display device according toclaim 8, wherein the collimating unit and the display component arelocated at a first side relative to a plane on which the waveguide unitis located, the collimated light corresponding to the first image exitstowards a second side relative to the plane on which the waveguide unitis located, the first side and the second side are opposite sidesrelative to the plane on which the waveguide unit is located.
 11. Thedisplay device according to claim 8, wherein an outer side surface ofthe waveguide unit adjacent to an exit surface of the collimated lightis a curved surface.
 12. An electronic apparatus, comprising: a bodydevice that comprises a processing unit configured to generate a firstimage to be displayed and to execute display control; a fixing deviceconnected with the body device and configured to fix a positionrelationship relative to a user of the electronic apparatus; and adisplay device provided within the body device and/or the fixing device,wherein the display device comprises: a display component configured tooutput initial light corresponding to the first image to be displayed bythe display device; and a light path converting component configured toreceive the initial light corresponding to the first image from thedisplay component, and to perform light path conversion on the initiallight corresponding to the first image to form a virtual imagecorresponding to the first image, wherein the virtual imagecorresponding to the first image is capable of being perceived at aparticular position and a size of the virtual image perceived is greaterthan a display size of the display component, wherein light that formsthe first image in the display component is on a first plane, light thatforms the virtual image corresponding to the first image and exits fromthe light path converting component is on a second plane, and there is afirst angle between the first plane and the second plane, so that afirst size of the display component in a direction vertical to the firstplane is smaller than a second size of the display component in adirection parallel to the first plane.
 13. The electronic apparatusaccording to claim 12, wherein the fixing device comprises at least afixed state in which the fixing device can serve as at least a portionof an annular space or an approximated annular space that satisfies afirst predetermined condition, the annular space or the approximatedannular space can surround a periphery of a columnar body that satisfiesa second predetermined condition.
 14. The electronic apparatus accordingto claim 13, wherein the light path converting component unit comprisesa collimating unit and a waveguide unit, the collimating unit isconfigured to collimate the initial light corresponding to the firstimage from the display component into collimated light corresponding tothe first image, and lead the same into the waveguide unit; thewaveguide unit guides the collimated light from the collimating unit tothe particular position, the collimating unit and the display componentare located at a first side relative to the plane on which the waveguideunit is located, the collimated light corresponding to the first imageemits towards a second side relative to the plane on which the waveguideunit is located, and the first side and the second side are oppositesides relative to the plane on which the waveguide unit is located, sothat a direction that the collimated light corresponding to the firstimage exits from the light path converting component is an outwarddirection of the annular space or the approximated annular space. 15.The electronic apparatus according to claim 14, wherein the displaydevice has a visible area that is at least a portion of the surface thatexits light of the waveguide unit, the visible area corresponds to theportion from which the light corresponding to the first image exits fromthe light path converting component in the light path convertingcomponent, and the visible area is set within the body device.
 16. Theelectronic apparatus according to claim 13, wherein other areas in thelight path converting component outside the visible area are set withinthe body device and/or the fixing device, and the display component isprovided within the body device and/or the fixing device, wherein anangle between the visible area and other areas outside the visible areais within a predetermined angle range.